Abstract
A new method for quick fabrication of continuous and compact silicalite-1(Si-MFI) membrane on stainless steel net was developed. The method consists of pre-treatment of substrate of stainless steel net with silica solution containing polyethylene oxide(PEO) polymer and a secondary growth process. The continuous and compact Si-MFI membranes were obtained within 12 h. The membrane was further characterized by scanning electron microscopy(SEM) and X-ray diffraction(XRD) analyses. SEM analyses show that the membrane is continuous and highly compact. XRD analyses suggest that the micro-crystals embedded in the membrane are well crystallized. The permeance and separation performance of the Si-MFI membrane were exa-mined with a gas-separation setup combining a gas chromatography. The results show that the Si-MFI membrane has an excellent permeance and separation performance for CO 2 and N 2.
| Original language | English |
|---|---|
| Pages (from-to) | 1124-1129 |
| Number of pages | 6 |
| Journal | Kao Teng Hsueh Hsiao Hua Heush Hsueh Pao/ Chemical Journal of Chinese Universities |
| Volume | 33 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Jun 2012 |
| Externally published | Yes |
Keywords
- Gas separation
- Membrane
- Silicalite-1
- Zeolite